Shop Services We can do almost any kind of machine work you could ever need done on your barrel. |
Tear down and re-assemble your upper | $60 |
All barrel machine work requires the barrel to be removed
from the upper receiver. If you are not outfitted to do this yourself, we
can handle it for you. If you only have 1 or 2 rifles, it's probably not
worth buying the tools. If you have several rifles and you feel you are
mechanically inclined, I would encourage you to get the barrel wrench,
torque wrench, pin punches etc and do it yourself. | |
Assemble an upper | $50 |
This service is to assemble an upper from a box of parts. If you are only building 1 or 2 uppers, it's probably not worth buying the tools. This service includes checking headspace and all of the same reliability checks I perform with the tear-down and rebuild service above. | |
Standard Barrel Threading | $60 |
This is the most commonly requested service. The barrel gets mounted in the lathe with a live center in the muzzle. The
muzzle gets turned down to the required size and then threads are cut with a single point tool. This ensures that the threads will be perfectly concentric and
parallel to the bore. After the threads are done and deburred, a new crown
is cut to eliminate the damage caused by the live center. Other shops would
consider this a 'precision' threading job. I do
the standard thread sizes, 1/2-28 or 5/8-24, with verification
from my gauges and tooling. Other sizes will require the precision threading
service below. The threaded area will be left unfinished.
Picture | |
Precision Barrel Threading | $85 |
This is a more specialized threading service required when
the typical threading above will not handle the job. The barrel gets mounted in the lathe with a live center in the muzzle. The
muzzle gets turned down to the required size and then threads are cut with a single point tool. This ensures that the threads will be perfectly concentric and
parallel to the bore. After the threads are done and deburred, a new crown is cut to eliminate the damage caused by the live center.
I can turn any of the common thread sizes such as 1/2-28, 9/16-24 or 5/8-24
to a specified pitch diameter. If you are mounting a sound suppressor, the
manufacturer will usually specify a pitch diameter or mating thread class
fit. I can also turn any other thread size you could ever need as long as I have a mating part or a similarly threaded part to measure.
This includes 1/2-36 as used on 9mm, 9/16-24 or any of the 28 TPI sizes like 9/16-28 or
3/4-28 etc. The threaded area will be left unfinished. | |
Shorten Barrel and Thread Muzzle | $90 |
This service includes shortening the barrel to any length
you specify and normal threading to 1/2-28 or 5/8-24 and re-cutting
the crown. Machined areas will be left unfinished. Opening up
the gas port for proper function at your new barrel length is also included.
Picture Picture 2 Picture3 | |
Shorten Barrel and Precision Thread Muzzle | $115 |
This service includes shortening the barrel to any length
you specify and a more specialized threading service required when
the typical shorten and threading service above will not handle the job. The barrel gets cut to length and then mounted in the lathe with a live center in the muzzle. The
muzzle gets turned down to the required size and then threads are cut with a single point tool. This ensures that the threads will be perfectly concentric and
parallel to the bore. After the threads are done and deburred, a new crown is cut to eliminate the damage caused by the live center.
I can turn any of the common thread sizes such as 1/2-28 or 5/8-24
to a specified pitch diameter. If you are mounting a sound suppressor, the
manufacturer will usually specify a pitch diameter or mating thread class
fit. I can also turn any other thread size you could ever need as long as I have a mating part or a similarly threaded part to measure.
This includes 1/2-36 as used on 9mm, 9/16-24 or any of the 28 TPI sizes like 9/16-28 or
3/4-28 etc. The threaded area will be left unfinished.Opening up
the gas port for proper function at your new barrel length is also included. | |
Shorten and Crown | $60 |
This service includes shortening the barrel to any length
you specify and re-cutting the crown as described below. Barrels that have
been radically shortened will also require gas port work priced elsewhere.
The crown face will be finished with touchup bluing where applicable. | |
Crown Job | $50 |
Many poor shooting barrels can be traced to problems with
the crown. The crown needs to be absolutely perpendicular to the bore. When
the bullet leaves the bore, gas is released at very high pressure all the
way around the bullet's base. If the crown were uneven, gas would release on
one side first and this tends to disturb the bullet just as it sent on it's
way downrange. Obviously this will show up as poor accuracy. Try this
inexpensive service before you abandon a barrel that seems to be poor
shooting. I use a specially ground high relief angle tool that only gets
used for crowns and it gets re-sharpened before every job. The tool is
pulled straight out from the bore so that no burrs are created at the end of
the bore. The bore-crown junction will be flat, with a radius about half way
out on the crown face. This creates a slightly recessed crown job. The crown
face will be finished with touchup bluing where applicable. Picture | |
Detent barrel | $25 |
This service is to fixture your barrel in the mill and then drill a detent for a setscrew-attached gas block. The dimple ensures that the gas block is located properly to align with the gas port on the barrel. The dimple also ensures that the gas block will not slide forward under recoil. Any gas block being used with a gas piston operating system should be cross pinned to the barrel using one of the services below. Picture | |
Single Cross Pin Gas Block to barrel | $25 |
This service is to fixture your barrel and gas block in the mill and then cross drill and ream for a 1/8" diameter dowel pin. | |
Pin Virgin Front Sight Base to Virgin barrel | $70 |
This service is to fixture your barrel and FSB in the mill and then drill and ream for standard 2/0 taper pins.
The barrel and FSB must be new parts (un drilled) to use this service. If you are re-using a FSB or barrel that has been previously
drilled before, the next service down is what you need. Please include taper pins with your FSB. We can also drill for and provide
straight dowel pins if you specify in the comments area of the service form. Picture | |
Re-work Used front sight base or used barrel | $120 |
This service is to fixture your used barrel or used FSB in the mill, locate the center of the old holes and
then drill and ream the mated barrel and FSB for standard 2/0 taper pins. The barrel and/or FSB can be previously used with this service.
Please include taper pins with your FSB. If the existing holes do not allow for standard taper pins to be used, we will
substitute oversized pins. Picture | |
Add M4 feedramps | $25 |
This service is to machine M4 feedramps into a barrel or complete upper that does not already have them. M4 feedramps increase the reliaility of barrels with short gas systems that run the bolt carrier at higher velocity than the original 20" barreled AR-15 design. The feedramps will be left unfinished. | |
Remove Permanently Attached Muzzle Device | $50 |
This service includes machining away your old muzzle device and cleaning up the threads to prep the muzzle for a new muzzle device to be
permanently attached. In most cases, the old muzzle device will be destroyed so it will not be salvageable. | |
Permanently Attach Muzzle Device | |
This service includes drilling through the installed muzzle device and into the barrel, installing a blind pin, welding over the end of the pin. This does not include barrel threading. This service is required to convert a 14.5" M4 barrel into a legal 16"+ barrel length. Welds will be finished with oil to protect from rust. Be sure you include your barrel nut and gas block with the barrel as it is usually not possibe to install them after the muzzle device is perm attached. In some cases, the upper must be fully assembled before the perm attach job if the handguard can not be installed over the muzzle device. If you have questions about this, please ask ahead of time! Picture Picture2 | |
Permanently Attach Carbon Steel or Stainless Muzzle Device | $60 |
Permanently Attach Titanium, Aluminum, Inconel or Monel Muzzle Device | $90 |
Compensator Indexing | $30 |
The typical method to index a compensator to the barrel
involves the use of peel washers or crush washers. Neither method leaves a
nicely finished look. This service is purely cosmetic, but it's one of those
small details that you come to appreciate on custom rifles. I can index a
muzzle device to your existing barrel by facing off the rear of the muzzle
device, or by facing off the barrel torque shoulder if the barrel will
already be in the lathe for other operations. Simple facing of the muzzle
device does not require the barrel to be removed from the upper. | |
Receiver Facing | $30 |
This service is to setup an AR receiver in the lathe and re-cut the front face perfectly square.
It is not uncommon to see the receiver face 0.001" or more out-of-square. This service ensures that the barrel will
seat square to the receiver's centerline. The machined end of the receiver will be left unfinished. Picture Picture2 | |
Partial Barrel Profiling | $70 |
This service is to turn your heavy barrel down to any
lighter profile you specify. This includes the diameter under the handguards
or the diameter from the front sight base forward. I can turn any kind of
profile that includes basic straight cylinders and short tapers not to
exceed about 2" in length. This service does not provide for changing the
gas block seat diameter. This service can be combined with basic threading
to turn a heavy 'post ban' barrel into a medium weight 'no-ban' barrel
without the need for a tapered bushing to support the muzzle device.
Machined areas will be left unfinished. Picture Picture 2 | |
Full Barrel Profiling | $120 |
This service is to turn your heavy barrel down to any
lighter profile you specify. This includes the diameter under the handguards
and the diameter from the front sight base forward. I can turn any kind of
profile that includes basic straight cylinders and short tapers not to
exceed about 2" in length. This service also provides for changing the
gas block seat diameter from 0.940" down to 0.750". This service can be combined with basic threading
to turn a heavy 'post ban' barrel into a lightweight 'no-ban' barrel
without the need for a tapered bushing to support the muzzle device.
Machined areas will be left unfinished. Picture | |
Blast and Parkerize | $70 |
Any visible profiling work on chromoly barrels will generally require
the barrel to be blasted and parkerized. This also fixes barrels that were
parkerized with the front sight base assembled instead of separately. Barrel
threading and crowning can generally be touched up with simple touchup
bluing, but the finish does not match parkerizing. If your barrel has a few
scratches and you just want it to look new again, this is what you need. Picture Picture 2 | |
Glass Bead or Sand Blasting | $35 |
This service mostly applies to stainless steel barrels. As machined, stainless barrels are shiny silver.
After glass bead blasting, they will be a nice matte gray. We use glass beads by default on stainless barrels,
but we can also use aluminum oxide sand which is a rougher blast more appropriate for painting. Sandblasting
leaves a darker finish than bead blasting. Specify sandblasting in the comments section of the service form if you would like
the barrel blasted with sand instead of glass beads. | |
Home : Contact : FAQ : Tech : Profiles : Shop Services : How a barrel is made : Accuracy Notes : Pictures We also work on other types of barrels: 22barrels.com : AKbarrels.com : 700barrels.com : TCbarrels.com Brands mentioned do not suggest any affiliation with the respective manufacturers. |